Bookbinding



May 21, 1946. mz 2,400,744

- BOOKBINDING I Filed Feb. 13, 1943 s Sheets-Sheet 1 May 21,1946. H.EINZIG 2,400,744v

B/OOKBINDING Filed Feb. 13 1943 3 Sheets-Sheet 2 i H. EINZIG BOOKBINDINGFiled Feb. 15, 1943' May Zl, 1946.

3 Sheets-Sheet 3 ikuezzjor:

Patented May 21, 1946 UNITED STATES PATENT OFFICE BOOKBINDING HenryEinzig, Chicago, Ill., assignor to Stemar Displays Company, Chicago,Ill.

Application February 13, 1943, Serial No. 475,827

2 Claims. (01. 129-1) This invention relates to improvements in bookbinding. It is, more particularly, an object of the invention to providea binding device capable of advantageous and economical use in thebinding or securing of the pages or sheets of books, magazines,pamphlets, etc., in juxtaposed relation and against displacement.

Furthermore, it is an object of the invention to provide a device of theabove stated character, wherein no use, or an absolute minimum of use,of metal fasteners is involved.

Another object of the invention resides in the provision of bindingmeans so associated with the treated leaves, pages or sheets of the sameor any thereof may be released for removal without disturbing the boundsecurity of the remaining ones, and if desired, replaced and rebound inl the original assembly.

Other objects of the invention will be in part obvious and in partpointed out hereinafter.

In order that the invention and its mode of operation may be readilyunderstood by those skilled in the art to which it appertains, I have inthe accompanying drawings and the detailed description based thereupon,set out several embodiments of my invention.

In these drawings:

Figure 1 is a side elevation of a book, pamphlet, or the like, boundaccording to the invention;

Figure 2 is an enlarged fragmentary transverse section taken on the line22 of Figure 1, looking in the direction in which the arrows point.

Figure 3 is a similar view, but taken on the line 33 of Figure 1,looking in the direction in which the arrows point.

Figure 4 is a fragmentary elevation of the cover sheet, prior tofolding,

Figure 5 is a similar view of one of the bound or locked double sheetsor' pages received within the cover sheet, and prior to folding.

Figure 6 is an elevation of one type of locking rod whereby the coverand bound or locked sheets are interconnected.

Figure '7 is a side elevation of a modified form of a book, pamphlet orthe like, bound according to, the invention.

Figure 8 is an enlarged fragmentary transverse section taken on the line88 of Figure '7, looking in the direction in which the arrows point.

Figure 9 is a similar view taken on the line 9-9 of Figure 7, looking inthe direction in which the arrows point.

Figure 10 is an elevation of the type of cover sheet employed in theform of invention disclosed in Figures 7, 8 and 9, prior to foldingthereof.

Figure 11 is a similar View of one of the double sheets or pages adaptedto be received in 01' by the cover sheet shown in Figure 10.

Figure 12 is an elevation of the locking means or bar employed tointerconnect or interlock the cover sheet and pages or leaves of theform of invention disclosed in Figures 7, 8 and 9.

Figure 13 is a side elevation, with parts broken away and shown insection, of a slightly modified form of locking means or bar for bindingor interconnecting the cover sheet and double leaves or pages receivedthereby.

Figure 14 is an enlarged fragmentary section taken on line i l-l4 ofFigure 13, looking in the direction in which the arrows point.

Figure 15 is an enlarged fragmentary section takenon line l5-l5 ofFigure 13, looking in the direction in which the arrows point.

Figure 16 is an elevation of the modified type or form of cover sheetused in the Figure 13 device.

Figure 17 is a similar view of the modified form of double sheets orpages, and v Figure 18 is a side elevation of the modified form oflocking bar.

Having more particular reference to the drawings, in connection withwhich like characters of reference will designate corresponding partsthroughout, and referring to the type of invention disclosed in Figures1-6, inclusive, the numeral I designates the cover of the improvedinvention, the same being preferably, though not necessarily, formed ofstock or material somewhat heavier than that from which the doublesheets orpages 2 are formed. The cover sheet I, as shown in Figure 4, isformed with an intermediately disposed and transversely extending slotor way 3, the opposite ends of which, as will be noted upon reference toFigure 4, are terminated inwardly of the opposite transversal edges ormarginal portions thereof. The double sheets or leaves 2, it may benoted, are of substantially the same size and shape as that of the coversheet 1, though if desired, they may be somewhat smaller, for reasonswell known and appreciated in the art. Corresponding intermediateportions of each of said double sheets or leaves 2 are formed withmarginally opening and inwardly extending slots or ways indicated at 4,the respective depths of which are such as to approximately correspondwith the widths of those portions of the cover sheet I outwardly of theopposite extremities of the slot or way 3 in the latter. Moreover, therespective widths of these slots or ways 4 approximately correspond tothe width of the slot or way 3, aforesaid, formed in the intermediateportion of the cover sheet I.

In assembling the constituent elements I and 2 (the cover sheet I andthe double sheets or leaves 2) preparatory to their arrangement orbinding in book, pamphlet or like formation, as

shown in Figures 1, 2 and 3 of the accompanying drawings, the doubleleaves 2 are arranged in juxtaposed or aligned relation so that theirrespective marginal opening slots or ways 4 register one with the other.The cover sheet I is now arranged over the outermost of the thusjuxtaposed double sheets or leaves 2 in such a manner that itsintermediate transverse way 3 longitudinally aligns with the sheet orpage provided slots or ways l. Thereupon, those portions of the coversheet I outwardly of the opposite ends of its said slot or way 3, i. e.,preferably along the line indicated at 5, are slightly inwardlydepressed, causing them to be received in and through the adjacent andregistering slots or ways 4 of the double sheets 2. At this time, alocking or connecting rod i, whcse length approximately corresponds tothe intermediate width of the cover sheet I, is longitudinally passedthrough the inwardly extended or flexed portions of the cover sheet I,that is to say, through the loops or sleeves thus formed by the flexingor bending of these portions of the cover sheet along the several dottedlines hereinbefore identified by the numeral 5. As the connecting rod 6is passed through one of the said inwardly extended portions of thecover sheet I, as clearly indicated at I in Figure 2, it is engaged withthe adjacent intermediate portion of the innermost double sheet or leaf2, as clearly shown at 8, whereupon it is engaged by the oppositeinwardly flexed or bent intermediate portion of the cover sheet I, asindicated in Figure 3 by the numeral 9. The connecting rod 6, when inconnecting or operative position, is so arranged that its opposite endsare immediately adjacent the opposite transverse marginal portions ofthe cover sheet I and the double sheets 2, though in some instances, andif desired, its opposite ends may be spaced slightly inwardly of theseopposite transverse marginal portions.

With the connecting rod I} thus engaged with the cover sheet I and thedouble sheets 2, the assembly is transversely folded along the aforesaidlines and hence, along the adjacent intermediate portions of the sheets2, i. e., the dotted line II) of the sheet 2 shown in Figure 5.

Sheets or leaves 2, bindingly secured as above described, will beassured retention in booklet, pamphlet or like formation orrelationship. Moreover, if desired, any particular one or more of suchsheets 2 may be readily removed from the assembly merely by disengagingthe connecting rod 5 therefrom and from the cover sheet I-- removing theparticularly desired sheet or sheets 2 and then reassembling the same inthe manner hereinbefore explained.

The connecting bar 6, should it be so desired, may be provided withmeans whereby to prevent its undesired sliding-like disengagement fromthe cover sheet I and the double sheets 2 by means of various deviceswell known in the art, viz, the rod may have its oppc-site ends slightlybent or it may be bent at one or more points throughout its length, thucausing it to have frictional binding engagement with the adjacent andcontacted portions of the cover sheet and the double sheets 2 whenarranged in operative position with respect thereto.

In Figures 7-12, inclusive, I have shown a somewhat modified form ofbinding wherein the numeral II represents the cover sheet of the book,booklet, magazine, etc., being preferably, though not necessarily,formed of material or stock of a sufficiently heavy gauge or weight towithstand the rigors of use to which it will be subjected. This coversheet II is of size and shape whereby it will provide forward andrearward covers for the book, i. e., when transversely foldedintermediately of itself, as indicated in Figure 7. An intermediateportion of the cover or cover sheet II is formed with a rectangulartransversely disposed slot or way I2, the ends of which terminate inspaced relation to the adjacent and opposite transverse marginalportions of the sheet, as shown in Figure 10. When in use, thoseportions of the cover sheet between the opposite ends of the way I2 andthe adjacent transv'ersal marginal portions of said sheet are inwardlyfolded along the dotted lines indicated by the numeral I3 and anintermediate parallel fold it is also formed in each of said portionsbut, as shown in Figures 8 and 9, in an opposite direction to that inwhich the folds I3 are effected. Thus, it will be seen that inwardlydisposed substantially V-shaped portions IE will be provided by thereferred to opposite portions of the cover sheet II, i. e., thoseportions of the same outwardly of the opposite ends of the transverseway I2. The leaves or pages of a book, booklet, magazine, etc., to bebound according to and through the instrumentalities of my invention,are of double sheet formation, as designated at It. That is, the lengthof each of such double sheets is such that when they are foldedtransversely and intermediately of themselves,

" they will provide leaves or pages of respective widths such as will beeffectually received within or housed by the folded cover sheet II. Thedouble sheets I6. are formed with marginally opening transverselyaligned slots or ways IT in their respective intermediate portions andthe widths of such slots or ways are preferably slightly greater thanthe widths of the inwardly disposed V-shaped portions I5, abovedescribed. Also, the respective depths of the slots or ways I1approximately correspond with the lengths of these inwardly disposedV-shaped portions I5, hence, permitting of their comparatively snugintroduction therethrough in the manner shown inFigure 8.

In assembling the sheets II and IE5 (the cover sheet and the doublesheets or leaves) preparatory to their binding in book, booklet,magazine or like formation, as shown in Figures 7 and 8, the doublesheets I6 are arranged in juxtaposed and aligned relationship in orderthat their respective marginal opening slots or ways I I will "beinregistration one with the other, and are then collectively foldedtransversely of themselves along the line It. The cover sheet II,thereupon, is arranged over the outermost of the aligned double sheetsIt in such a manner that its inwardly disposed substantially V-shapedformations l5; are engaged and extend through the aligned ways II ofsaid double sheets I6, as clearly shown in Figure 8 of the accompanyingdrawings. At this time, a locking bar I9, made of cardboard, plastic,etc., is longitudinally passed between the inwardly disposed -V-shapedportions I5 and the intermediately folded portions I8 of theidoublesheets I6. It will be noted that the length of said locking barapproximately corresponds to the depth of the thus interconconnected orbound double sheets It and cover II; also, that its opposite ends areadapted to be arranged adjacent the transversal marginal portions ofboth the sheets I6 and II. Due to the fact that the width of the lockingbar I9 substantially corresponds to the space between said foldedportions I l and I8, it will be understood that the resulting frictionalengagement with such portions will act to releasably, yet firmly, secureit against undesired sliding dis placement therefrom. I

A book, booklet, magazine or like, having it cover sheet and leaves orpages bound as described in the immediately preceding embodiment of myinvention, will be positively retained in assembled or collatedrelation, although if desired, certain of the double leaves or sheetsmay be selectively removed therefrom, merely by sliding the locking barI 9 out of engagement with the inwardly disposed V-shaped portions I andthe intermediately folded portions I8 of said sheets I 6. At such time,the desired double sheet or leaf may be removed and the remaining leavesand the cover sheet reassembled in the manner above described.

It may be desirable that the locking bar I9 shall be provided withpositive means for preventing its unwarranted or unwanted slidabledisplacement from engagement with the aforesaid double sheets I6 andcover sheet I I. To this end, I propose that type of modified form oflocking bar illustrated in Figures 13 and 18 of the accompanyingdrawings and designated by the numeral I9. Also, if desired, therelative formations of the cover sheet I I and the double sheets orleaves I6, as shown in the Figures and 11, may be reversed, as shown inFigures 16 and 17. In this particular form of the invention, the coversheet II is formed with relatively transversely opposed intermediatelyarranged marginal opening slots or ways IT, as shown in Figure 16, andthat portion of said cover sheet intermediately of the inner ends ofsaid slots or ways I1 is adapted to be inwardly folded along the linesI3 and then reversely folded along the line I4, whereby to provide aninwardly disposed cross-sectionally V- shaped portion I5. The variousdouble sheets or leaves I'B' have their corresponding intermediateportions each formed with transversely disposed slots or ways I2, theopposite ends ofwhich, as will be noted upon reference to Figure 17,terminate inwardly of the opposite transverse mar-' ginal portions oftheir sheets. To assemble the sheets II and I6 into book, booklet,magazine or the like form, the sheets I6 are transversely collated andthen folded upon themselves along the line I8, which folding, as will beunderstood upon reference to Figures 14 and 17, will substantiallybisect the transversely disposed slots or ways I2. At this time, theinwardly disposed cross sectionally V-shaped portion I 5' of the coversheet II is inserted or passed inwardly through the registering slots orways I2 of the sheets I5, as is well shown in Figures and 16, hence,interconnecting said sheets II' and I6. Thereupon, the locking bar I9 isslidably inserted or passed between the folded outer portions of thesheets I6 and the inner end of the cross sectionally V-shaped portion I5imtil its opposite end are substantially adjacent or aligned with theopposite transversal marginal portions of the cover sheets or doublesheets or leaves, as is seen in Figure 13. To prevent undesired slidingmovement of the locking bar I9 from such position or engagement, thenormally inner longitudinal edge of said bar is inwardly shouldered orrightangularll cut as indicated at 20. The shouldering of the bar I9, asat 2B, is so effected that such shoulder will engage over the oppositeends of the inwardly folded portion I4 of the V- shaped portion I5, asclearly shown in Figures 13, 14 and 15, and hence, will securely thoughreleasably lock or secure said bar against undesired sliding movementwith respect to the cover sheet and double sheets II and I6.

Manifestly, the construction shown is capable of further modification,and such modification as is within the scope of my claims, I considerwithin the spirit of my invention.

I claim: 7

1. In combination, a plurality of longitudinally folded and nestedsheets, certain of said sheets having longitudinally disposed alignedand spaced way formed therein along its fold opening onto its oppositesides, another of said sheets having a longitudinally disposed wayformed therein intermediately of its opposite sides along its fold, theopposite ends of which terminate at points thereon in proximity to theinner ends of the spaced ways in the first mentioned sheet, the foldedintermediate portion of the first mentioned sheet engaging through theadjacent intermediately arranged way in the second mentioned sheet, andthe folded portions of the second mentioned sheet outwardly of itsintermediately arranged way engaging through the aligned and spaced waysin the first mentioned sheet in a direction opposite to that of theintermediate portion of said first mentioned sheet, and connecting meanspassing between and through the engaged portions of said first andsecond mentioned sheets.

2. In combination, a plurality of longitudinally folded and nestedsheets, certain of said sheets having longitudinally disposed alignedand spaced ways formed therein along its fold opening onto its oppositesides, another of said sheets having a longitudinally disposed wayformed therein intermediately of its opposite sides along its fold, theopposite ends of which terminate at points thereon in proximity to theinner ends of the spaced ways in the first mentioned sheet, the foldedintermediate portion of the first mentioned sheet engaging through theadjacent intermediately arranged 'way in the second mentioned sheet andthe folded portion of the second mentioned sheet outwardly of itsintermediately arranged way engaging through the aligned and spaced waysin the first mentioned sheet in a direction opposite to that of theintermediate portion of said first mentioned sheet, and a flatconnecting body passing between and through the engaged portions of saidfirst and second mentioned sheets having its flattened sidessubstantially parallel to the folded sides of said sheets and itsopposite edges engaged with and along the adjacent folded portions ofthe same.

HENRY EINZIG.

